Fastening-inserting mechanism



' 1, 2 ,2 March 8,1927. G. GQDDU ET AL 6 0 00 FASTENING INSERTING MECHANISM Filed Jan. 11. 1923 Patented Mar. 8, 1927.

scones eo'n'ntr, or: wmcnnsmes; AND men cnns'nrrsi. nssrenottsa'ro UNITED"'sHonMAorIIImRYcoRPoRA'rIoN; orfrarensonynewcnnsnr, Acoaronnrionor new JERSEY.

m menmeamsemrne "Meceamsirm Application filed Jan nary: 11 119,233 Serial No. 612,026.

reference to tlie attachment of rubbcrileels to shoes:

consists in strotching theernbber of the heel n'xeinber before and dining the 'dri v ingfof the nails-so =thzrt each nail" is driven through.

ncdnfiubherw When the rub'bori's're-= a. daft-er the completion oi"-tl1ie na l1iigop= str c nails olose together over the heads-ol the na'i ls: in a vei'yrinconspicuons fashion; 5

It is an objeot ofthepresent inventionto provide athroa tmechanismron fastening in serting machines of such. a character 1 as to facilitate this blindnailing operation.

' lVith this object in View the illustrated construction? compris'esa a plurality of movably mounted throat-members arranged at their lower ends to enter a recess in the heel member L Means illustrated as the driver o'f the machine; is arranged to -force *the throat inem-bersvapart after theirlower ends h ave entered'the'rrecess ln the heel member to 1 stretclrthe rubber'wof the heel member before and during thennsortion of each tasteninge l. ro'lerabl y; and as ail lustra-ted me an s 1 :i s p rovided to equalize theunovemont e 1the-dilier ont throatmembersawayfii rom their normal or inoperative position SOjllliflil their move ment will not displace the fastening during its insertion. This equalizingmeans is illustrated as a spring bearing against the outer surfaces of the throat members and yieldingly pressing them together.

With the above and other objects in view the invention will now be described in con- .nection with the accompanying drawings and pointed out in the claims.

In the drawings Fig. 1 is a front elevation of the throat members, driver and associated parts of a nail inserting machine embodying the present invention;

Fig. 2 is a side elevation of the same parts showing in addition the relation of the throat members to the work;

Fig. 3 is a horizontal section on the line 3-3 of Fig. 2; i

Fig. etis a transverse section on the line Itvhas recentlylbeen proposed to attaclr i-tion the holes anade bythe-d rivingot the th roahblock lti iii-which:

4-4 of FigsB ;ishowing'the driverof'the ma a nailing machine of any usualior known type; such a machi ne conveniently"being provi (led :with r araceway 4- arranged I to carry nails to adriverguide fi through which: is reciprocateda drive1f8: A separator 10 controls the 'passageof nails from't-he raceway to thedriverguidew The machine is con-ven ien-tly;provided: with aflzit presser plate 12 againstmvhiclr the work' is :held by: a: work supporo let ofz any convenientconstruction: Rigidlv connectedto the-vpresser plate' is a are "pivotedaat 18 a pair I of; thr'oat members 205 each tapering as at} 22,. toi'vards its work 1 engaging portion and terminating.1 ina semiscylindrical rpro jectiorr 5 Q k'arranged to enter conical .recess: 25 of a rubber heel:1nember: A spring 26. anchored catu. 28* to the presserv plat-e12 ten d-sito force the throat' members 20 together and to.equalize;their movement as they are forced,-rapiart in the mann'er hereinafter describedj Eztclnof thethroat members 20 is grooved as-shoevlr-at; 30icthe two grooves =co=operatin to form; na l opening; through '.the 'throata This opening is preferably large enoughizat its upper portion to permit the free and unobstructed entrance of a nail but tapers down to almost nothing at its lower end, as indicated at 32 (Fig. 3), so that the nail will be held in the throat until engaged and forced into the work by the driver. As the driver moves down to drive the nail into the work,

itforces the throat members 20 away from one another, since the lower and intermediate portions of the nail opening in the throat are of less diameter than the driver, sothat the projections 24 of the throat members, which have been engaged in one of the conical recesses 25 formed in the tread surfaces of the rubber heel member, stretch the rubber of the heel member as they are forcedapart and hold it in stretched condition due ing the driving of the nail, as indicated in Fig. 4. When, after the completion of the driving of the nail, the driver and throat are withdrawn from the work, the rubber is released and closes together over the nail, as indicated at 34 (Fig. 5).

Having thus described our invention, what we claim as new and desire to secure by Letters Pa ent of the United States is l. A fastening inserting machine having a nozzle comprising a pair of pivoted members for engaging the work and tapering towards their work engaging portion each of said members terminating in a substantially semi-cylindrical projection.

2. A throat for fastening inserting machines arranged to facilitate the blind nailing of rubber heel members, comprising a pair of pivotally supported throat members grooved to form a threat opening between the two, and stretching means carried by said throat members arranged to enter a recess in a rubber heel member and movable to stretch the rubber of the heel member before the nail is inserted and to hold it in stretched condition during the insertion of the nail.

3. A fastening inserting machine having. in combination, a driver, and a plurality of movably mounted throat members arranged to enter a recess in a rubber heel member into which a fastening is to be inserted and to be engaged and forced apart by said driver before the fastening contacts with the heel member to stretch the rubber of the heel member and during the driving of the fastening into the heel member to maintain the rubber in stretched condition.

at. A. fastening inserting machine having, in combination, a presser member, a throat comprising a. plurality of movably mounted members projecting beyond the work engaging face of the presser member and arranged to enter a recess in a rubber heel member in which a nail is to be inserted, and means to force the throat members apart to stretch the rubber of the heel member preparatory to and during the insertion of a fastening.

5. A fastening inserting machine having a presser member, a throat comprising a plurality of movably mounted throat members projecting beyond the Work engaging face of the presser member and arranged to enter a recess in a rubber heel held in engagement with the presser member, and a driver arranged to force the throat members away from one another to stretch the rubber of the heel member as the driver inserts a fastening therein.

6. A fastening inserting machine, having, in combination, a flat presser plate, a plurality of movably mounted throat members terminating in nozzle ends surrounded by unobstructed space, said members being carried thereby and arranged to enter a recess in a rubber heel member, and means to equalize the movement of the throat members from their inoperative position.

7. A fastening inserting machine having a throat comprising a plurality of pivoted members having nozzle ends of a size corresponding to that of the usual conical recesses in a rubber heel member, the space around said nozzle ends being unobstructed to permit them to enter said recess, means for forcing the throat members apart to stretch the rubber ofthe heel member durlng the insertion of a fastenlng, and a sprlng tending to equalize the movements of the throat members.

8. A fastening inserting machine having, in combination, a. presser plate, and a pair of work-engaging throat members extending therethrough, tapering towards their work engaging portions and terminating in projections arranged to enter a recess in a work piece held against said presser plate, adjacent sides of the throat members being grooved to form a throat opening.

In testimony whereof we have signed our names to this specification.

GEORGE GODDU. FRED L. MACKENZIE.

GERTIFEGATE @F (IQRREQTEGN,

Patent No. 1,620,230. Granted March 8, 1927, to

GEORGE GQDDU ET AL It is hereby certified that errer eppeers in the printed specification of the above numbered patent requiring correction as teHeWe: Page 2, line 60, claim 6, before the Weird "terminating" insert the weeds "carried thereby and"; line 6l,f0r the Word "members" read "ends"; and time 62, strike out the words "carried thereby end";end that the said Letters Patent should be read with these correctfitms therein that the meme may ceeterm to the record of the case in the Patent ()fiice.

Signed and sealed this 4th day of (i ctobet, A. D. E927.

M. J Meme Seal. Acting Gemmiseioner 0t Patents. 

